<!DOCTYPE html>
<HTML>
<HEAD>
    <TITLE> ZTREE DEMO - reAsyncChildNodes</TITLE>
    <meta content="text/html; charset=UTF-8" http-equiv="content-type">
    <link href="../../../css/demo.css" rel="stylesheet" type="text/css">
    <link href="../../../css/zTreeStyle/zTreeStyle.css" rel="stylesheet" type="text/css">
    <script src="../../../js/jquery-1.4.4.min.js" type="text/javascript"></script>
    <script src="../../../js/jquery.ztree.core.js" type="text/javascript"></script>
    <!--  <script type="text/javascript" src="../../../js/jquery.ztree.excheck.js"></script>
      <script type="text/javascript" src="../../../js/jquery.ztree.exedit.js"></script>-->
    <SCRIPT type="text/javascript">
        <!--
        var setting = {
            view: {
                selectedMulti: false
            },
            async: {
                enable: true,
                url: "../asyncData/getNodes.php",
                autoParam: ["id", "name=n", "level=lv"],
                otherParam: {"otherParam": "zTreeAsyncTest"},
                dataFilter: filter
            },
            callback: {
                beforeClick: beforeClick,
                beforeAsync: beforeAsync,
                onAsyncError: onAsyncError,
                onAsyncSuccess: onAsyncSuccess
            }
        };

        function filter(treeId, parentNode, childNodes) {
            if (!childNodes) return null;
            for (var i = 0, l = childNodes.length; i < l; i++) {
                childNodes[i].name = childNodes[i].name.replace(/\.n/g, '.');
            }
            return childNodes;
        }

        function beforeClick(treeId, treeNode) {
            if (!treeNode.isParent) {
                alert("请选择父节点");
                return false;
            } else {
                return true;
            }
        }

        var log, className = "dark";

        function beforeAsync(treeId, treeNode) {
            className = (className === "dark" ? "" : "dark");
            showLog("[ " + getTime() + " beforeAsync ]&nbsp;&nbsp;&nbsp;&nbsp;" + ((!!treeNode && !!treeNode.name) ? treeNode.name : "root"));
            return true;
        }

        function onAsyncError(event, treeId, treeNode, XMLHttpRequest, textStatus, errorThrown) {
            showLog("[ " + getTime() + " onAsyncError ]&nbsp;&nbsp;&nbsp;&nbsp;" + ((!!treeNode && !!treeNode.name) ? treeNode.name : "root"));
        }

        function onAsyncSuccess(event, treeId, treeNode, msg) {
            showLog("[ " + getTime() + " onAsyncSuccess ]&nbsp;&nbsp;&nbsp;&nbsp;" + ((!!treeNode && !!treeNode.name) ? treeNode.name : "root"));
        }

        function showLog(str) {
            if (!log) log = $("#log");
            log.append("<li class='" + className + "'>" + str + "</li>");
            if (log.children("li").length > 8) {
                log.get(0).removeChild(log.children("li")[0]);
            }
        }

        function getTime() {
            var now = new Date(),
                h = now.getHours(),
                m = now.getMinutes(),
                s = now.getSeconds(),
                ms = now.getMilliseconds();
            return (h + ":" + m + ":" + s + " " + ms);
        }

        function refreshNode(e) {
            var zTree = $.fn.zTree.getZTreeObj("treeDemo"),
                type = e.data.type,
                silent = e.data.silent,
                nodes = zTree.getSelectedNodes();
            if (nodes.length == 0) {
                alert("请先选择一个父节点");
            }
            for (var i = 0, l = nodes.length; i < l; i++) {
                zTree.reAsyncChildNodes(nodes[i], type, silent);
                if (!silent) zTree.selectNode(nodes[i]);
            }
        }

        $(document).ready(function () {
            $.fn.zTree.init($("#treeDemo"), setting);
            $("#refreshNode").bind("click", {type: "refresh", silent: false}, refreshNode);
            $("#refreshNodeSilent").bind("click", {type: "refresh", silent: true}, refreshNode);
            $("#addNode").bind("click", {type: "add", silent: false}, refreshNode);
            $("#addNodeSilent").bind("click", {type: "add", silent: true}, refreshNode);
        });
        //-->
    </SCRIPT>

</HEAD>

<BODY>
<h1>用 zTree 方法异步加载节点数据</h1>
<h6>[ 文件路径: core/async_fun.html ]</h6>
<div class="content_wrap">
    <div class="zTreeDemoBackground left">
        <ul class="ztree" id="treeDemo"></ul>
    </div>
    <div class="right">
        <ul class="info">
            <li class="title"><h2>1、reAsyncChildNodes 方法操作说明</h2>
                <ul class="list">
                    <li class="highlight_red">使用 zTreeObj.reAsyncChildNodes 方法，详细请参见 API 文档中的相关内容</li>
                    <li><p>此 Demo 只能同时选中一个父节点<br/>
                        试试看：[ <a href="#" id="refreshNode" onclick="return false;">重新加载</a> ]&nbsp;&nbsp;&nbsp;&nbsp;[
                        <a href="#" id="addNode" onclick="return false;">追加</a> ]</p>
                    </li>
                    <li><p><span class="highlight_red">“悄悄地”操作只能针对 折叠状态 的父节点</span><br/>
                        试试看：[ <a href="#" id="refreshNodeSilent" onclick="return false;">悄悄地 重新加载</a> ]&nbsp;&nbsp;&nbsp;&nbsp;[
                        <a href="#" id="addNodeSilent" onclick="return false;">悄悄地 追加</a> ]<br/>
                        async log:<br/>
                        <ul class="log" id="log"></ul>
                        </p>
                    </li>
                </ul>
            </li>
            <li class="title"><h2>2、setting 配置信息说明</h2>
                <ul class="list">
                    <li class="highlight_red">使用 zTree 提供的 reAsyncChildNodes 方法也必须设置 setting.async 中的各个属性，详细请参见 API
                        文档中的相关内容
                    </li>
                </ul>
            </li>
            <li class="title"><h2>3、treeNode 节点数据说明</h2>
                <ul class="list">
                    <li>同 "异步加载 节点数据" 中的说明</li>
                </ul>
            </li>
            <li class="title"><h2>4、其他说明</h2>
                <ul class="list">
                    <li>同 "异步加载 节点数据" 中的说明</li>
                </ul>
            </li>
        </ul>
    </div>
</div>
</BODY>
</HTML>